Finding the Fourth Proportional to 123,397.71, 184,960.71 and 80,685.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,397.71 : 184,960.71 = 80,685.52 : x
2. Step 2: Convert to fraction form
   123,397.71/184,960.71 = 80,685.52/x
3. Step 3: Cross multiply
   123,397.71x = 184,960.71 × 80,685.52
4. Step 4: Simplify right side
   123,397.71x = 14,923,651,196.26
5. Step 5: Solve for x
   x = 14,923,651,196.26/123,397.71
6. Step 6: Final answer
   x = 120,939.45